I posted about this problem a few months ago. I had my two 8 month old kittens neuterd back in February. When they came home they had problems walking. They wobbled and couldn't jump or play. I decided to give it some time. They did get a little better but there was still a noticable change in the way they walk. I called the vet a week later and told her about this change. She is baffled as to why they have trouble with their balance. I considered the possiblity that they hit a nerve with the needle because they also got rabies shots. She said that couldn't be it because the needle was very short. To this day they walk a little funny and have trouble jumping. I have spoken with other vets and they think that they have improved as much they they are going to. They are happy cats and I love them dearly. It hasn't changed them alot, but I am wondering if anyone has experienced this. If so what was the explaination? I'm still wondering.